The Greens want 16 and 17-year-olds to have the option of voting at next year's territory election.
Greens MLA Caroline Le Couteur said the recent climate change protests showed young people were more engaged than ever in the democratic process.
But changes proposed by Ms Le Couteur - specifically around the move to allow optional voting for 16 and 17 year olds - would require the federal government to amend the Self-Government Act and be put to electors at a referendum.
The changes also seem unlikely to gain ACT government support, as it has previously said they would be impractical. Ms Le Couteur said 16 and 17-year-olds should be able to take part in democracy if they wanted to.
"As the recent school strike made clear, we saw thousands of children taking direct action on climate change," Ms Le Couteur said.
"These students - residents of the ACT- are concerned about their future but frustratingly aren't able to vote.
"16 and 17 year olds can legally work full-time. If they are working, they pay taxes. They can drive a car, have sex and make medical decisions about their bodies. They can join the Army, Navy or Air Force. They can sign a lease, or join a political party - yet they can't vote."
Ms Le Couteur said she supported optional voting for the teens -as opposed to the compulsory voting that applies to all adults - because young people had varying levels of maturity.
She said she understood it conflicted with Commonwealth law, but noted her federal Greens colleague Senator Jordon Steele-John had moved legislation to change the minimum voting age to 16.
A Parliamentary inquiry - called for by the Greens - in 2017 recommended the voting age stay at 18.
The government agreed with this recommendation, saying there were practical issues with current legislative requirements and that the community's views were unclear.
It said having a differential approach to compulsory voting based on age - as Ms Le Couteur has suggested - would present numerous human rights and practical issues.